I work there, so I'm biased, but I think the best alternative to floppy backups is the snapshot feature built into the filesystem on the filers we make at Network Appliance. The filesystem periodically saves its state so that you can retrieve old versions of your files simply by peering into the special ".snapshot" directory (called "~snapshot" if you're using Windows CIFS network drives instead of Unix NFS.) So if you
accidentally mung a file, you can just fetch it out of one of the hourly or nightly snapshots. You wouldn't believe how many times this has saved our asses in engineering.:-)
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I work there, so I'm biased, but I think the best alternative to floppy backups is the snapshot feature built into the filesystem on the filers we make at Network Appliance. The filesystem periodically saves its state so that you can retrieve old versions of your files simply by peering into the special ".snapshot" directory (called "~snapshot" if you're using Windows CIFS network drives instead of Unix NFS.) So if you accidentally mung a file, you can just fetch it out of one of the hourly or nightly snapshots. You wouldn't believe how many times this has saved our asses in engineering. :-)
Read the filesystem design paper to find out how it works.